Air conditioning system and method of operating same

An air-conditioning system and air-processing technology, which is applied in air-conditioning systems, machine operation methods, heat recovery systems, etc., can solve problems such as difficult to achieve heat balance, overcooling, and low temperature in air-conditioned spaces

Inactive Publication Date: 2004-08-25
EBARA CORP
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  • Abstract
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Problems solved by technology

[0006] However, even in this type of air-conditioning system, when dealing with relatively low sensible heat loads such as the relatively low temperature and high humidity generated during the rainy season, it is difficult to achieve the heat required for desiccant regeneration generated by the electric heat pump and Thermal balance between cooling loads for sensible heat processing, as a result, if priority is given to obtaining dehumidification, the conditioned space temperature may become too low because the cooling of the feed air in the low temperature heat source heat exchanger 240 may become too cool

Method used

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  • Air conditioning system and method of operating same
  • Air conditioning system and method of operating same
  • Air conditioning system and method of operating same

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Embodiment Construction

[0044] Preferred embodiments will now be described with reference to the accompanying drawings. figure 1 A basic structural diagram showing the first embodiment of the air conditioning system of the present invention. A vapor compression heat pump 200 includes: a compressor 260; a low temperature heat source heat exchanger (evaporator) 240; a high temperature heat source heat exchanger (condenser) 220; an expansion valve 250, thus forming a vapor compression refrigeration circuit. In this way, the low-pressure refrigerating steam and desiccant post-processing air exchange heat in the low-temperature heat source heat exchanger (evaporator) 240, while the high-pressure refrigerating steam and desiccant pre-regeneration air exchange heat in the high-pressure heat source heat exchanger (condenser) 220 .

[0045] The circuit for circulating air is configured as follows. The desiccant wheel 103 rotates at a given speed while bridging the process air passage A and the regeneration...

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Abstract

This invention provides an air conditioning system and operation method, having superior dehumidification ability and flexibly adaptable for processing a variety of conditioning loads, and also energy conserving. The invention comprises: a desiccant 103 for adsorbing moisture from process air; and a heat pump 200, including a compressor 260, that operates by using process air as a low-temperature heat source 240 and regeneration air as a high-temperature heat source 220 so as to supply heat to regeneration air for regenerating the desiccant. Processes of heat transfer in a sensible heat exchanger are made adjustable, for exchanging heat between post-desiccant process air that has not flowed into the low temperature heat source heat exchanger and pre-desiccant regeneration air that has not yet regenerated the desiccant.

Description

technical field [0001] The present invention relates to an air-conditioning system, in particular to an air-conditioning system capable of continuously dehumidifying air through a desiccant and regenerating the desiccant through a heat pump. Background technique [0002] Figure 10 Represents a system based on the conventional technology disclosed in US Patent 4430864, ​​which includes: process air path A; regeneration air path B; two desiccant beds 103A, 103B; heat pump 200 for regenerating desiccant and cooling process air. The heat pump 200 utilizes the heat exchangers 220, 210 embedded in the desiccant beds 103A, 103B as high and low temperature heat sources respectively, one of the desiccant beds is dehumidified by circulating process air, and the other desiccant bed is regenerated by circulating regeneration air. agent bed. After air conditioning has been performed for a certain time interval, the four-way switching valves 105, 106 are operated to circulate regenerati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F3/00F24F3/14F24F5/00F24F11/02F24F11/76F25B13/00F25B29/00F28D21/00
CPCF24F2203/1032F24F2203/1004F25B2313/02741F24F2003/144Y02B30/52F24F3/1423F24F5/001F24F3/1411F24F2203/1028F24F2203/1016F24F2203/104Y02B30/123F25B13/00F25B29/003F24F2203/1084F24F2203/1056F24F2203/1076
Inventor 前田健作
Owner EBARA CORP
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